Black screen with R9 270x 2GB after installing drivers : r/AMDHelp
MSI R9 270x flickering screen and Black Screen | Tom's Hardware Forum
R9 270X Problem - Can use basic ATI driver (non-safe mode), but can't upgrade to latest driver. Screen goes black and restarts. - Graphics Cards - Linus Tech Tips
How to Fix GPU - graphic card No signal - BLACK SCREEN and Missing components on AMD XFX R9 270 2GB - YouTube